C1&2 Revision

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Across
  1. 2. the process whereby dissolved substances are separated by running a solvent along a material such as absorbent paper.
  2. 5. the name for the columns in the periodic table
  3. 6. Metals found in Group 1
  4. 8. atoms that have the same number of protons but different a number of neutrons
  5. 11. a dense particle found in the nucleus with a neutral charge.
  6. 12. A substance made as a result of a reaction
  7. 13. Metals in the middle of the periodic table
  8. 14. a charged particle produced by gaining or losing electron(s).
  9. 15. A substance used in a reaction
Down
  1. 1. The specific distances electrons orbit the nucleus
  2. 3. Horizontal rows in the periodic table.
  3. 4. a substance made up of only one type of atom
  4. 7. a substance where two or more elements are chemically bonded.
  5. 9. tiny negatively charged particle that orbits the nucleus of an atom
  6. 10. Group 7 elements
  7. 16. Very unreactive gases found in Group 0